Chairman of LG Group, an offshoot of the company that produced Korea's first radio in the 1950s. Today has 36 affiliate companies in electronics, home appliances, chemicals and telecom, with a combined $94 billion in sales. Koo is the largest shareholder of holding company LG Corp. Last year, amid troubles at LG.Philips LCD, a joint-venture between LG and Dutch electronics firm Philips, Koo sacked younger brother Koo Bon-Joon as chief executive; move boosted shares. Vice chairman of the Federation of Korean Industries, a trade group, Koo is said to be one of the few chaebol leaders who remains scandal-free.